Lattice QCD calculations of transverse momentum-dependent parton distributions (TMDs)
- Resource Type
- Authors
- Michael Engelhardt; Andreas Schäfer; Rajan Gupta; Sergey Syritsyn; Jeremy Green; B. Musch; Ph. Hägler; Boram Yoon; Andrew Pochinsky; John W. Negele; Stefan Krieg; Tanmoy Bhattacharya
- Source
- Les Ulis : EDP Sciences, The @European physical journal / Web of Conferences 112, 01008-(2016). doi:10.1051/epjconf/201611201008
6th International Conference on Physics Opportunities at an ElecTron-Ion Collider, POETIC6, Palaiseau, France, 2015-09-07-2015-09-11
The European physical journal / Web of Conferences 112, 01008-(2016). doi:10.1051/epjconf/201611201008
EPJ Web of Conferences, Vol 112, p 01008 (2016)
- Subject
- Quark
Physics
Particle physics
010308 nuclear & particles physics
QC1-999
High Energy Physics::Lattice
Lorentz transformation
Hadron
Parton
Observable
Lattice QCD
01 natural sciences
Nuclear physics
symbols.namesake
Amplitude
Lattice (order)
0103 physical sciences
symbols
ddc:530
010306 general physics
- Language
- English
An ongoing program of evaluating TMD observables within Lattice QCD is reviewed, summarizing recent progress with respect to several challenges faced by such calculations. These lattice calculations are based on a definition of TMDs through hadronic matrix elements of quark bilocal operators containing staple-shaped gauge connections. A parametrization of the matrix elements in terms of invariant amplitudes serves to cast them in the Lorentz frame preferred for a lattice calculation. Data on the naively T-odd Sivers and Boer-Mulders effects as well as the transversity TMD are presented.